Source Code Cross Referenced for ZoneField.java in  » 6.0-JDK-Modules » j2me » gov » nist » javax » sdp » fields » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules » j2me » gov.nist.javax.sdp.fields 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Portions Copyright  2000-2007 Sun Microsystems, Inc. All Rights
003:         * Reserved.  Use is subject to license terms.
004:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
005:         * 
006:         * This program is free software; you can redistribute it and/or
007:         * modify it under the terms of the GNU General Public License version
008:         * 2 only, as published by the Free Software Foundation.
009:         * 
010:         * This program is distributed in the hope that it will be useful, but
011:         * WITHOUT ANY WARRANTY; without even the implied warranty of
012:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
013:         * General Public License version 2 for more details (a copy is
014:         * included at /legal/license.txt).
015:         * 
016:         * You should have received a copy of the GNU General Public License
017:         * version 2 along with this work; if not, write to the Free Software
018:         * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
019:         * 02110-1301 USA
020:         * 
021:         * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
022:         * Clara, CA 95054 or visit www.sun.com if you need additional
023:         * information or have any questions.
024:         */
025:        /*
026:         */
027:        package gov.nist.javax.sdp.fields;
028:
029:        import gov.nist.core.*;
030:        import java.util.*;
031:        import gov.nist.javax.sdp.*;
032:
033:        /**
034:         * Zone SDP field.
035:         *
036:         * @version JSR141-PUBLIC-REVIEW (subject to change).
037:         *
038:         *
039:         * <a href="{@docRoot}/uncopyright.html">This code is in the public domain.</a>
040:         *
041:         */
042:
043:        public class ZoneField extends SDPField {
044:            /** Zone adjustments. */
045:            protected SDPObjectList zoneAdjustments;
046:
047:            /**
048:             * Copies the current instance.
049:             * @return the copy of this object
050:             */
051:            public Object clone() {
052:                ZoneField retval = new ZoneField();
053:                retval.zoneAdjustments = (SDPObjectList) this .zoneAdjustments
054:                        .clone();
055:                return retval;
056:            }
057:
058:            /**
059:             * Default onstructor.
060:             */
061:            public ZoneField() {
062:                super (ZONE_FIELD);
063:                zoneAdjustments = new SDPObjectList();
064:            }
065:
066:            /**
067:             * Adds an element to the zone adjustment list.
068:             * @param za zone adjustment to add.
069:             */
070:            public void addZoneAdjustment(ZoneAdjustment za) {
071:                zoneAdjustments.addElement(za);
072:            }
073:
074:            /**
075:             * Gets the zone adjustment list.
076:             * @return the list of zone adjustments.
077:             */
078:            public SDPObjectList getZoneAdjustments() {
079:                return zoneAdjustments;
080:            }
081:
082:            /**
083:             * Encodes this structure into a canonical form.
084:             * @return encoded string of object contents
085:             */
086:            public String encode() {
087:                StringBuffer retval = new StringBuffer(ZONE_FIELD);
088:                for (int i = 0; i < zoneAdjustments.size(); i++) {
089:                    ZoneAdjustment za = (ZoneAdjustment) zoneAdjustments
090:                            .elementAt(i);
091:                    if (i > 0)
092:                        retval.append(Separators.SP);
093:                    retval.append(za.encode());
094:                }
095:                retval.append(Separators.NEWLINE);
096:                return retval.toString();
097:            }
098:
099:            /**
100:             * Returns a Hashtable of adjustment times, where:
101:             * key = Date. This is the equivalent of the decimal NTP time value.
102:             * value = Int Adjustment. This is a relative time value in seconds.
103:             * @param create to set
104:             * @throws SdpParseException if a parsing error occurs
105:             * @return create when true, an empty Hashtable is created, if it is null.
106:             */
107:            public Hashtable getZoneAdjustments(boolean create)
108:                    throws SdpParseException {
109:                Hashtable result = new Hashtable();
110:                SDPObjectList zoneAdjustments = getZoneAdjustments();
111:                ZoneAdjustment zone;
112:                if (zoneAdjustments == null)
113:                    if (create)
114:                        return new Hashtable();
115:                    else
116:                        return null;
117:                else {
118:                    for (int i = 0; i < zoneAdjustments.size(); i++) {
119:                        zone = (ZoneAdjustment) zoneAdjustments.elementAt(i);
120:                        Long l = new Long(zone.getTime());
121:                        Integer time = new Integer((int) l.longValue());
122:                        Date date = new Date(zone.getTime());
123:                        result.put(date, time);
124:                    }
125:                    return result;
126:                }
127:            }
128:
129:            /**
130:             * Sets the Hashtable of adjustment times, where:
131:             * key = Date. This is the equivalent of the decimal NTP time value.
132:             * value = Int Adjustment. This is a relative time value in seconds.
133:             * @param map Hashtable to set
134:             * @throws SdpException if the parameter is null
135:             */
136:            public void setZoneAdjustments(Hashtable map) throws SdpException {
137:                if (map == null)
138:                    throw new SdpException("The map is null");
139:                else {
140:                    SDPObjectList zoneAdjustments = getZoneAdjustments();
141:                    for (Enumeration e = map.keys(); e.hasMoreElements();) {
142:                        Object o = e.nextElement();
143:                        if (o instanceof  Date) {
144:                            Date date = (Date) o;
145:                            ZoneAdjustment zone = new ZoneAdjustment();
146:                            zone.setTime(date.getTime());
147:                            addZoneAdjustment(zone);
148:                        } else
149:                            throw new SdpException(
150:                                    "The map is not well-formated ");
151:                    }
152:                }
153:            }
154:
155:            /** 
156:             * Sets whether the field will be output as a typed time or a integer value.
157:             *
158:             * Typed time is formatted as an integer followed by a unit character. 
159:             * The unit indicates an appropriate multiplier for
160:             * the integer.
161:             *
162:             * The following unit types are allowed.
163:             * <pre>
164:             * d - days (86400 seconds)
165:             * h - hours (3600 seconds)
166:             * m - minutes (60 seconds)
167:             * s - seconds ( 1 seconds)
168:             * </pre>
169:             * @param typedTime typedTime - if set true, the start
170:             * and stop times will be
171:             * output in an optimal typed time format; if false, the
172:             * times will be output as integers.
173:             */
174:            public void setTypedTime(boolean typedTime) {
175:                // Dummy -- feature not implemented.
176:            }
177:
178:            /**
179:             * Returns whether the field will be output as a typed time or a
180:             * integer value.
181:             *
182:             * Typed time is formatted as an integer followed by a unit character.
183:             * The unit indicates an appropriate multiplier for
184:             * the integer.
185:             *
186:             * The following unit types are allowed.
187:             * <pre>
188:             * d - days (86400 seconds)
189:             * h - hours (3600 seconds)
190:             * m - minutes (60 seconds)
191:             * s - seconds ( 1 seconds)
192:             * </pre>
193:             * @return true, if the field will be output as a typed time;
194:             * false, if as an integer value.
195:             */
196:            public boolean getTypedTime() {
197:                return false;
198:            }
199:        }
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